DE3700200C2 - Armor element - Google Patents

Description

The present invention relates to an armor element, the highly resistant to bullets to pierce of armored fortifications.

Armor elements were originally used for defense are designed from armored piercing bullets various metal alloy compositions. The continuous search for better tanks for Combat vehicles led to ever thicker, harder and heavier tanks, increasing the mobility of the Combatant was sacrificed more and more. These Systems were also becoming increasingly expensive to design and use Compilation.

From DE 30 05 586 A1 an armor element is made Composite known. This well known Armor element consists of a plate-shaped porous molded body made of silicon carbite high hardness and compressive strength, with steel or one Steel alloy or other, after cooling a high bending, shear and compressive strength as well Elastic metal or a metal alloy is soaked or impregnated. Beyond that it is already known using ceramic armor elements to provide different metallic content.

From the US-PS 37 43 569 is already an armor element known, which consists of ceramic materials in which are distributed differently over the strength  metallic part is included. These well-known Armor elements have one on the fire side Layer of hard ceramic on which material uniformly a layer with increasing proportion Metal particles connects to the overall cohesion of the To increase the armor element after a hit.

It has also been suggested that Metal alloy systems through hard plastics and ceramic materials in an effort to replace that To reduce the weight of the armor (US-PS 38 59 892). These materials work in the defense against Shot in that the impact of the projectiles smash, shatter, melt and the like to to dissipate the energy of the projectile. In this way the system is then no longer able to handle subsequent ones Fending off bullets in satisfactory.

Ideally, application armor, i.e. H. Armor, which according to the composition of the protective structure or the structure to be protected have five criteria:

• 1) The ability to provide high levels of protection;
• 2) the ability to make a multiple serve to withstand;
• 3) easy installation and / or easy repair;
• 4) inexpensive;
• 5) light weight.

The current non-metallic (i.e. ceramic or plastic armor systems for the most part of relatively light weight and are able to successfully repel the first hit. she are generally quite expensive and fragile, whereby they do not or only to a small extent the  Ability to withstand multiple hits. They are also difficult to protect Attach structure or the structure to be protected.

It is therefore an object of the present invention to inexpensive armor and lightweight armor too create that easily and quickly by magnetic Effect be applied to an object to be protected can. It is also desirable that the armor be high Offers degree of protection and has the ability to multiple Endure hits.

According to the invention there is a solution to the aforementioned Tasks from two alternatives.

According to a first teaching, this is the invention Armor element characterized in that it is made of a magnetized, ferrous layer ceramic material and an envelope from one Fiberglass layer is made of ceramic Material is thicker than the fiberglass layer and that the Fiberglass layer on the ceramic material Glue is fixed.

According to a further teaching of the invention, a alternative armor element according to the invention suggested that it is characterized by a magnetized, ferrous layer ceramic material and an envelope from one Fiberglass layer is made of ceramic Material is thicker than the fiberglass layer and that the Fiberglass layer on its outer surface with a thin protective layer coated with synthetic resin is.  

Figure 1 shows a partial cross-sectional view of a particular embodiment of the present invention.

Referring to Fig. 1, the armor system shown in the drawing is in the form of armor that can be used on armored vehicles, with arrow 12 representing the outside of the armored car and representing the grenades attacking. The armor consists of a layer 14 made of ferrous ceramic material, encased in a fiberglass layer 16 . Optimally and therefore preferably, the fiberglass layer is covered with a protective layer 18 based on synthetic resin. The armor is magnetically applied to the metallic surface 20 of the vehicle to be protected (not shown here).

The armor element is attached to the structure by magnetizing the ferrous ceramic layer 14 and simply magnetically attaching the armor elements to the structure. Ceramic armouring currently in use is attached to the structure to be protected using an adhesive, a mounting frame, or bolts. These procedures are expensive, tedious and time consuming and make replacement and repair very difficult. The armor element according to the invention greatly simplifies the methods of changing the armor type by simply removing a magnetically attached layer and magnetically attaching another iron-containing ceramic layer.

The armor element according to the present invention makes transportation and transportation much easier Storage by the ferrous ceramic layers  magnetized and in magnetically adherent Stacks can be stored and / or transported.

The enveloping fiberglass layer gives the armor system the ability to endure multiple hits in that the fiberglass layer by impact sections of the Holds ceramic material together. Additional ability to The system is able to withstand multiple hits by magnetic properties of the armor, where the magnetic properties cause the Ceramic sections on the surface of the to be protected Stay attached after the impact. The magnetic properties of the armor element supports the purpose of the invention in that it prevent the armor element in parts is dismembered by the fact that it Integrity of the armor element after an impact maintain.

The protective layer made of synthetic resin is first Line constructed so that the armored blocks or bricks protected during shipping. You lend however, they also have the ability to make multiple serves survive by showing the entirety of the armor after the Maintaining a bullet.

The magnetizable ferrous ceramic materials, that make up the armor element according to the invention are much less expensive than that commonly used as Armor material used, non-ferrous ceramic materials. It also increases the relatively thin cladding layer the total cost of the Armor element according to the invention is not essential.  

According to a further teaching of the invention, the layer a layer thickness of about 0.635 to about 2.54 cm, depending of course of the purpose of the armored construction and the Nature of the projectiles that may hit.

Suitable ferrous ceramic materials include Ferrites such as strontium, barium and lead hexaferrite.

In the tank system according to the invention, the envelope has Fiberglass layer has a thickness in the range of about 0.228 to 0.686 mm, again depending on the intended Use of the armored construction and the nature of the possibly hitting projectiles.

The resin coating can be any usual comprise thermoplastic or elastomeric material. Suitable thermoplastic materials include Polyvinyl resins (e.g. polyvinyl chloride) which are based on the Armored blocks or bricks by any usual method for Application of synthetic resins (hot-melt immersion in the Resin-containing plastisol such as Denflex 9183-A-2 der Dennis Chemical Co.) can be applied.

Suitable elastomers include neoprene, which on the Armored bricks according to any of the known usual Methods can be applied as they apply of elastomeric coatings (e.g. Coating from solutions with subsequent curing Etc.).

The resin layers should have a thickness of about 0.794 to about 3.175 mm.

The armor elements according to the invention adjust armor system to be applied below that  is particularly suitable on a lightweight Armored vehicle to be applied and this one to provide additional protection. Lightweight- Armored vehicles as they are currently used, must be small and light in weight so that they can be used Airplanes can be transported. The Construction requirements due to the internal dimensions imposed by airplanes require that one reduced armor is applied. Therefore, one Additional armor used to increase protection after the combat vehicle by plane to the battlefield was transported.

example

The armor element according to the present consists of a composite armor made of a magnet made of ferrous ceramic material, one Fiberglass layer and possibly a synthetic resin protective layer consists. The magnet preferably has a block size of about 10.16 × 15.21 cm with different thickness in Range from about 0.635 to 2.54 cm depending on the desired weight and protection requirements special tactical situation. Preferably, the Fiberglass layer glass fibers in a single direction, taking about half of the glass fibers to the others is aligned vertically transversely for optimal Effect. The glass fibers are preferred into one that serves to keep the layer together Resin layer embedded, e.g. B. Styrene Butadiene Resin (SBR) and the layer has a thickness of about 0.457 mm and is on the ceramic material using a self-adhesive backing attached. This layer includes the magnet made of ceramic material as a whole and helps keep the ceramic material within its limits hold together after a blow and thereby close  prevent the individual parts from falling apart. This also increases Armor resistance guaranteed to be a multiple To survive the impact of grenades. The protective layer made of synthetic resin is about 1.587 mm thick and helps Damage from handling as well The armor element falls apart into individual parts to prevent after impact.

The bricks can be attached anywhere on a vehicle wherever additional armor protection is necessary is. They can also be applied to any type of vehicle armor protection is needed. Although it's simple is the armor element according to the invention in a steel armored vehicle (because it itself can be magnetized), the invention Armor element can also be attached to vehicles, which is due to a non-magnetizable surface usual methods, d. H. with glue, bolts or Have mounting frames or the like. It is already known from the construction sector, magnetic Bricks to increase the stability of the brick composite use (US-PS 40 26 086).

In the first place, the attachment to vehicles is off Steel easily and quickly. You just need to determine what additional protection is necessary and then you only need to put as many bricks as it is is necessary to protect the area. The blocks or Bricks are attached by the block or the brick to the surface with the side facing the vehicle is placed, which shows a strong magnetization. Of the the next goat becomes as close as possible to the previous one hung up, trying to place every column between the to avoid individual blocks. This procedure will continued until the entire area is covered for the  additional protection should be achieved. The additional Protection can be achieved by further Armored bricks on the previous layer in the same Way to be hung up.

Ballistic tests were performed using one 2.54 cm, 1.90 cm and one 1.27 cm thick Armored brick of 10.16 × 15.24 cm on a 0.476 cm thick plate made of armored steel. None of the plates allowed the penetration of a shell piercing grenade from Caliber 30.

Claims (11)

1. armor element, characterized in that it consists of a magnetized, iron-containing layer ( 14 ) made of ceramic material and an envelope made of a fiberglass layer ( 16 ) that the layer ( 14 ) of ceramic material is thicker than the fiberglass layer ( 16 ) and that the fiberglass layer ( 16 ) is fixed on the ceramic material by adhesive. 2. Armor element, characterized in that it consists of a magnetized, iron-containing layer ( 14 ) made of ceramic material and an envelope made of a fiberglass layer ( 16 ) that the layer ( 14 ) of ceramic material is thicker than the fiberglass layer ( 16 ) and that the fiberglass layer ( 16 ) is coated on its outer surface with a thin protective layer ( 18 ) made of synthetic resin. 3. Armor element according to claim 1 or 2, characterized in that the layer ( 14 ) made of ferrous ceramic material has a thickness in the range of about 0.635 to about 2.54 cm. 4. Armor element according to one of the preceding Expectations, characterized in that the ferrous ceramic material is a ferrite material contains. 5. armor element according to claim 4, characterized in that the Ferrite is barium, strontium or lead hexaferrite. 6. armor element according to one of the preceding claims, characterized in that the fiberglass layer ( 16 ) has a thickness in the range of about 0.228 to about 0.686 mm. 7. armor element according to one of claims 2 to 6, characterized in that the protective layer ( 18 ) made of synthetic resin has a thickness in the range of about 0.794 to about 3.175 mm. 8. armor element according to one of claims 2 to 7, characterized in that the synthetic resin is a thermoplastic resin. 9. armor element according to claim 8, characterized in that the thermoplastic resin is polyvinyl chloride. 10. armor according to one of claims 2 to 7, characterized in that the synthetic resin is an elastomer. 11. armor element according to claim 10, characterized in that the Is elastomeric neoprene.